intro story D-Flow FM


D-Flow Flexible Mesh

D-Flow Flexible Mesh (D-Flow FM) is the new software engine for hydrodynamical simulations on unstructured grids in 1D-2D-3D. Together with the familiar curvilinear meshes from Delft3D 4, the unstructured grid can consist of triangles, pentagons (etc.) and 1D channel networks, all in one single mesh. It combines proven technology from the hydrodynamic engines of Delft3D 4 and SOBEK 2 and adds flexible administration, resulting in:

  • Easier 1D-2D-3D model coupling, intuitive setup of boundary conditions and meteorological forcings (amongst others).
  • More flexible 2D gridding in delta regions, river junctions, harbours, intertidal flats and more.
  • High performance by smart use of multicore architectures, and grid computing clusters.
An overview of the current developments can be found here.
The D-Flow FM - team would be delighted if you would participate in discussions on the generation of meshes, the specification of boundary conditions, the running of computations, and all kinds of other relevant topics. Feel free to share your smart questions and/or brilliant solutions! 


We have launched a new website (still under construction so expect continuous improvements) and a new forum dedicated to Delft3D Flexible Mesh.

Please follow this link to the new forum: 

Post your questions, issues, suggestions, difficulties related to our Delft3D Flexible Mesh Suite on the new forum.





Sub groups
D-Flow Flexible Mesh
Cohesive sediments & muddy systems


Message Boards

Threads with tag compiling .

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Make fails! Compiling on Linux Ubuntu 18.04.5 LTS Josias NONGBE 0 96
Compiling | Revision 3020 Tag | VS 2008 + iFort 11.1 Anonymous Anonymous 6 4215
Running Delft3D-Flow with GUI and Compiling Source code Imran Ali 0 93
Compiling Delft3d in OpenSuse 13.1 Giovanni Besio 10 9119
Compiling 20130808_tidal_turbines with gfortran Thomas Roc 1 2032
compiling delft3d troubles - Bonnie Lucas 1 2714
compiling problems using Windows 7 and Intel Composer XE 2013 Johanna Sucher 7 8723
installing Delft3D on Windows JiHye Kim 3 5173
Compiling Delft3D in 32-bit Linux system LI LI 6 3653
Compiling issues again Ed Atkin 5 3313
Linux: build only FLOW + WAVE Jay Veeramony 2 2097
Error Compiling Error LNK1123 Steven Micko 4 6184
make error in Dirk Smit 2 1966
make error in and Dirk Smit 15 8790
MPI Linking error in Delwaq2 James Tomlinson 45 37496
version Fortran 2013? x64? chris gabriel 6 5043
Problems compiling Delft3D on windows Constanzo Marullo 9 18766
version Fortran 2013? x64? chris gabriel 6 5043
Error Compiling (datsel) - Delwaq Iury Simões 16 9947